Home / 138,710.94-208,075.05-55,594.14

Finding the Fourth Proportional to 138,710.94, 208,075.05 and 55,594.14

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Solution

The fourth proportional to 138,710.94, 208,075.05 and 55,594.14 is: 83,394.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,710.94 : 208,075.05 = 55,594.14 : x
  2. Step 2: Convert to fraction form
    138,710.94/208,075.05 = 55,594.14/x
  3. Step 3: Cross multiply
    138,710.94x = 208,075.05 × 55,594.14
  4. Step 4: Simplify right side
    138,710.94x = 11,567,753,460.21
  5. Step 5: Solve for x
    x = 11,567,753,460.21/138,710.94
  6. Step 6: Final answer
    x = 83,394.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.